第十二周Java作业

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主要代码：

import java.awt.*;import javax.swing.*;import java.awt.event.*;public class PersonalInformation extends JFrame{    JPanel pl;    JLabel lbl1, lbl2;    JCheckBox cb1, cb2, cb3;    ButtonGroup bg;    JRadioButton rb1, rb2;    JScrollPane sp;    JTextArea ta;    public PersonalInformation(){        super("PersonalInformation");        Listener1 l1 = new Listener1();        lbl1=new JLabel("兴趣");        cb1 = new JCheckBox("羽毛球");        cb1.addItemListener(l1);        cb2 = new JCheckBox("乒乓球");        cb2.addItemListener(l1);        cb3 = new JCheckBox("唱歌");        cb3.addItemListener(l1);        Box boxH1 = Box.createHorizontalBox();        boxH1.add(Box.createHorizontalStrut(5));        boxH1.add(lbl1);        boxH1.add(Box.createHorizontalStrut(50));        boxH1.add(cb1);        boxH1.add(Box.createHorizontalStrut(5));        boxH1.add(cb2);        boxH1.add(Box.createHorizontalStrut(5));        boxH1.add(cb3);        Listener2 l2 = new Listener2();        lbl2=new JLabel("性别");        bg = new ButtonGroup();        rb1 = new JRadioButton("男");        rb1.addActionListener(l2);        rb2 = new JRadioButton("女");        rb2.addActionListener(l2);        bg.add(rb1);        bg.add(rb2);        Box boxH2 = Box.createHorizontalBox();        boxH2.add(Box.createHorizontalStrut(5));        boxH2.add(lbl2);        boxH2.add(Box.createHorizontalStrut(50));        boxH2.add(rb1);        boxH2.add(Box.createHorizontalStrut(5));        boxH2.add(rb2);        pl = new JPanel();        pl.setLayout(new GridLayout(2,1));        pl.add(boxH1);        pl.add(boxH2);        ta = new JTextArea(200, 300);        sp = new JScrollPane(ta);        Container contentPane = getContentPane();        contentPane.add(pl, BorderLayout.NORTH);        contentPane.add(sp, BorderLayout.CENTER);        setSize(400,300);        setVisible(true);        setDefaultCloseOperation(EXIT_ON_CLOSE);    }    public static void main(String args[]){        new PersonalInformation();    }    class Listener1 implements ItemListener{        public void itemStateChanged(ItemEvent e){            if(e.getSource()==cb1)                ta.append(cb1.getText()+"\n");            else if(e.getSource()==cb2)                ta.append(cb2.getText()+"\n");            else if(e.getSource()==cb3)                ta.append(cb3.getText()+"\n");        }    }    class Listener2 implements ActionListener{        public void actionPerformed(ActionEvent e){            if(e.getSource()==rb1)                ta.append(rb1.getText()+"\n");            else if(e.getSource()==rb2)                ta.append(rb2.getText()+"\n");        }    }}
演示效果图：

这里写图片描述
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